lecture2 - Challenge Question! You observe that whenever...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Challenge Question! You observe that whenever you come to class, a very attractive individual of the opposite sex seems to be staring at you. You wonder why! As a good scientist, you develop an “idea”: this person is madly in love with you and probably wants to get married very soon! This type of an “idea” should properly be called a(n): A. theory B. experiment C. fact D. hypothesis
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
THE SCIENTIFIC METHOD Hypothesis Testing and Experimentation General pattern of scientific exploration: Observation ----> Question ---> Hypothesis ----> Predictions ---> Testing (experimentation) ---> Results/conclusions
Background image of page 2
THE SCIENTIFIC METHOD Hypothesis Testing and Experimentation Testing Ideas about How the Natural World Works A hypothesis is developed to explain an observed phenomenon. Example: giraffes have long necks because the long necks enable them to reach food that is unavailable to others.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Most feeding is done below neck height. Males Females 1 2 3 4 5 6 7 0 Feeding height (meters) Percentage of feeding bites 0 20 40 1 2 3 4 5 6 7 0 0 20 40
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Hypothesis Testing and Experimentation Testing Ideas about How the Natural World Works Alternative hypotheses that suggest a different explanation are developed. Example: giraffes have long necks because long necks are effective weapons for one male to use against another during mating competition.
Background image of page 6
Testing Ideas about How the Natural World Works The predictions made by each hypothesis are determined. Observations are made and/or an experiment is designed, to obtain data regarding the predictions. Conclusion: the observational data may
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/23/2009 for the course BIO 150 taught by Professor Schmidt during the Spring '08 term at SUNY Stony Brook.

Page1 / 26

lecture2 - Challenge Question! You observe that whenever...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online